fix(draft): conspiracy cards work in custom cube drafts

- CustomLimited.parse(): merge DeckSection.Conspiracy into the card pool
  so cards like Backup Plan appear in packs alongside regular cards.
- GauntletMini.startRound(): call assignConspiracies() on each player
  before starting the match (LoadDraftScreen already did this; Gauntlet
  mode was the missing path).
- FDeckEditor CatalogPage: pass forceCreateIfAbsent=true to
  getPageForSection() in onCardActivated() and buildMenu() so the
  Conspiracy tab is created on demand when a conspiracy card is drafted.
- BackupPlanService.initializeExtraHands(): guard each extra-hand draw
  with a library-size check to prevent a turn-0 game loss when a player
  holds multiple Backup Plans. Use getMaxHandSize() instead of hardcoded 7.

Author: billyhewlett

forge-gui/src/main/java/forge/gamemodes/limited/CustomLimited.java

@@ -21,6 +21,7 @@
 import forge.deck.CardPool;
 import forge.deck.Deck;
 import forge.deck.DeckBase;
+import forge.deck.DeckSection;
 import forge.item.PaperCard;
 import forge.item.SealedTemplate;
 import forge.model.FModel;
@@ -121,7 +122,16 @@ public static CustomLimited parse(final List<String> dfData, final IStorage<Deck
         cd.numPlayers = data.getInt("NumPlayers");
         cd.customRankingsFile = data.get("CustomRankings", "rankings_cubecobra.txt");
         final Deck deckCube = cubes.get(data.get("DeckFile"));
-        cd.cardPool = deckCube == null ? ItemPool.createFrom(FModel.getMagicDb().getCommonCards().getUniqueCards(), PaperCard.class) : deckCube.getMain();
+        if (deckCube == null) {
+            cd.cardPool = ItemPool.createFrom(FModel.getMagicDb().getCommonCards().getUniqueCards(), PaperCard.class);
+        } else {
+            // Include conspiracy cards (e.g. Backup Plan) in the draft pool alongside regular cards
+            CardPool pool = new CardPool(deckCube.getMain());
+            if (deckCube.has(DeckSection.Conspiracy)) {
+                pool.addAll(deckCube.get(DeckSection.Conspiracy));
+            }
+            cd.cardPool = pool;
+        }
 
         return cd;
     }

forge-gui/src/main/java/forge/gamemodes/limited/GauntletMini.java

@@ -139,6 +139,10 @@ private void startRound() {
         starter.add(human);
         starter.add(aiOpponents.get(currentRound - 1).setPlayer(GamePlayerUtil.createAiPlayer()));
 
+        for (final RegisteredPlayer pl : starter) {
+            pl.assignConspiracies();
+        }
+
         hostedMatch = GuiBase.getInterface().hostMatch();
         hostedMatch.startMatch(gauntletType, null, starter, human, GuiBase.getInterface().getNewGuiGame());
     }